Archbishop Thomas Zinkula became archbishop of the Archdiocese of Dubuque in October 2023. Prior, he was bishop of the Diocese of Davenport, installed in 2017. He was ordained a priest of the Archdiocese of Dubuque in 1990 and served many parishes in addition to roles as judicial vicar, episcopal vicar and rector of St. Pius X Seminary. Before becoming a priest, Archbioshop Zinkula worked as an actuary and attorney in Cedar Rapids. He has his B.A. from Cornell College, Mt. Vernon (mathematics and economics/business), J.D. from University of Iowa College of Law, Iowa City, M.A. from Catholic University of America, Washington, D.C. (theology) and J.C.L. from St. Paul University, Ottawa, Canada (licentiate in canon law). His episcopal motto is Fiat voluntas tua (Thy will be done).